Ground: Hardcourt indoor
| ITF M25 Burnie | 2025/02/19 02:00 | Chase Ferguson v Colin Sinclair | 7-6,6-3 |
| Challenger Manama | 2025/02/10 08:00 | Marat Sharipov v Colin Sinclair | 7-6,6-4 |
| Challenger Manama | 2025/02/09 09:00 | Colin Sinclair v Ryan Nijboer | 3-6,6-4,6-3 |
| Challenger Brisbane Qual | 2025/02/02 01:30 | Thomas Braithwaite v Colin Sinclair | 1-6,6-3,7-6 |
| Challenger Brisbane | 2025/01/27 00:00 | Kokoro Isomura v Colin Sinclair | 6-4,6-4 |
| Challenger Brisbane | 2025/01/26 03:10 | Duje Markovina v Colin Sinclair | 7-6,3-6,2-6 |
| Challenger Noumea | 2024/12/31 06:25 | Benoit Paire v Colin Sinclair | 6-7,6-1,7-5 |
| ITF M25 Carrara | 2024/11/27 00:00 | Moerani Bouzige v Colin Sinclair | 6-4,6-7,6-3 |
| ITF M25 Bali | 2025/01/01 01:30 | Chase Ferguson v Duckhee Lee | 2-6,6-3,6-3 |
| ITF M15 Bali | 2024/12/25 07:00 | Duckhee Lee v Arthur Weber | 2-6,5-7 |
| ITF M15 Bali | 2024/12/23 04:30 | Millen Hurrion v Duckhee Lee | 2-6,4-6 |
| ITF M15 Bali | 2024/12/20 01:30 | Fitriadi M Rifqi v Duckhee Lee | 3-6,6-7 |
| ITF M15 Bali | 2024/12/18 07:00 | Pavel Verbin v Duckhee Lee | 1-6,4-6 |
| Challenger Seoul | 2024/10/28 04:00 | Hiroki Moriya v Duckhee Lee | 6-3,6-3 |
| Challenger Seoul | 2024/10/27 03:50 | Duckhee Lee v Yusuke Takahashi | 3-6,6-3,7-6 |
| Challenger Nonthaburi | 2024/09/23 06:10 | Duckhee Lee v Yurii Dzhavakian | 0-6,3-6 |